CN217830982U

CN217830982U - Anti-blocking device for fluid director and photovoltaic system

Info

Publication number: CN217830982U
Application number: CN202221800676.5U
Authority: CN
Inventors: 李磊; 邱旭江; 祝水星
Original assignee: Sungrow Renewables Development Co Ltd
Current assignee: Sungrow Renewables Development Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-11-18
Anticipated expiration: 2032-07-12

Abstract

The utility model relates to a photovoltaic power generation technical field discloses a divertor anti-clogging device and photovoltaic system. The flow guider anti-blocking device comprises a flow guider and a water supply assembly, wherein the flow guider is arranged on a frame at the bottom end of the photovoltaic assembly; the water supply assembly comprises a rainwater collecting box, a water storage box, a water pump and a water spraying pipe, the rainwater collecting box, the water storage box and the water pump are sequentially communicated, a water inlet of the water spraying pipe is communicated with a water outlet of the water pump, one end, far away from the water pump, of the water spraying pipe extends in a length direction parallel to the bottom end frame, a water spraying opening faces the fluid director, and the water spraying pipe can spray water towards the fluid director to clean dust. The rainwater collecting box is used for collecting rainwater and transmitting the rainwater into the water storage tank, water resources are saved, water pressure is relieved, the water spraying pipe can spray water towards the fluid director, accumulated dust at the bottom end frame is washed clean, the problem of blockage of the fluid director is solved, system power generation is improved, and the service life of the fluid director is prolonged.

Description

Divertor anti-blocking device and photovoltaic system

Technical Field

The utility model relates to a photovoltaic power generation technical field, concretely relates to divertor anti-clogging device and photovoltaic system.

Background

Photovoltaic power generation is a technology for directly converting light energy into electric energy by utilizing the photovoltaic effect of a semiconductor interface. The photovoltaic power station system is especially a distributed power station on a color steel tile roof, dust has great influence on the generated energy of the photovoltaic power station system, and the removal of the dust on a photovoltaic module is a great difficulty faced by power station owners. The traditional dust cleaning of the power station generally adopts manual cleaning except natural precipitation dust removal, the cleaning frequency is low, and the labor cost is higher. In recent years, a product, namely the fluid director, which has low investment cost and can improve the generated energy of a system appears in the market, and the fluid director utilizes the siphon principle to guide the residual water and dust on the frame of the photovoltaic module to the outside of the photovoltaic module so as to achieve the aim of cleaning the photovoltaic module.

In the prior art, one or more flow deflectors are generally installed on the bottom end frame of the photovoltaic module. Because the surface dust deposition of the photovoltaic module is excessive, the flow guide capacity of the flow guide device is limited, and after raining, part of dust deposition is accumulated to the bottom end frame of the photovoltaic module from the surface of the photovoltaic module, so that the dust is not completely guided once, and the flow guide device is blocked due to repeated accumulation. Once the fluid director is blocked, the dust accumulated on the bottom end frame forms shadow shielding on the photovoltaic assembly, so that the power loss of the photovoltaic assembly is caused, and the generated energy of the system is reduced. The flow deflectors of different manufacturers are subjected to tracking test, the flow deflectors are blocked, the flow deflectors are maintained and removed and cleaned once every quarter or six months, the workload is huge, and the maintenance cost is increased.

Therefore, it is desirable to provide a deflector anti-clogging device and a photovoltaic system to solve the above problems.

SUMMERY OF THE UTILITY MODEL

According to the utility model discloses an aspect, the utility model aims to provide a honeycomb duct anti-clogging device has solved the problem that the divertor blockked up among the prior art, has promoted the system's generated energy, has prolonged the life of divertor, and practices thrift the cost.

In order to achieve the purpose, the utility model discloses a following technical scheme realizes:

a deflector anti-clogging device, comprising:

the fluid director is arranged on the bottom end frame of the photovoltaic module;

the water supply assembly comprises a rainwater collecting box, a water storage box, a water pump and a water spray pipe, wherein the rainwater collecting box, the water storage box and the water pump are sequentially communicated, a water inlet of the water spray pipe is communicated with a water outlet of the water pump, one end, far away from the water pump, of the water spray pipe is parallel to the length direction of the bottom end frame, extends and enables a water spray opening to face the fluid director, and the water spray pipe can spray water towards the fluid director to clean accumulated dust.

As a preferable scheme of the anti-blocking device for the flow guider, the water supply assembly further comprises a rainfall sensor, a first electromagnetic valve is connected between the rainwater collection box and the water storage box, a second electromagnetic valve is connected on the water spraying pipe, and the rainfall sensor is electrically connected with the water pump, the first electromagnetic valve and the second electromagnetic valve.

As a preferable scheme of the deflector anti-clogging device, the water spraying pipe comprises a connecting pipe and a flushing pipe group which are communicated, wherein the water inlet of the connecting pipe is communicated with the water outlet of the water pump, and the flushing pipe group is used for spraying water towards the deflector.

As a preferable solution of the deflector anti-clogging device, the connecting tube has two water outlets;

the flushing pipe group comprises a first flushing pipe and a second flushing pipe, the first flushing pipe and the second flushing pipe are respectively and correspondingly communicated with the two water outlets of the connecting pipe, the first flushing pipe is arranged at the junction of the bottom end frame and the photovoltaic panel, and the second flushing pipe is arranged on the side face of the bottom end frame and is located between the fluid director and the bottom end frame.

As a preferable scheme of the deflector anti-blocking device, a spray head is connected to a water spray opening of the second flushing pipe.

As a preferable scheme of the deflector anti-blocking device, the water spraying pipe comprises two water spraying nozzles, and the two water spraying nozzles are arranged in opposite directions and are used for spraying water to the deflector on two adjacent photovoltaic modules.

The preferable scheme of the anti-blocking device for the fluid director further comprises a recovery assembly, wherein the recovery assembly comprises a recovery pipe and a filtering device, the recovery pipe is communicated with the filtering device, the filtering device is communicated with the water storage tank, the recovery pipe is used for collecting sewage generated by washing deposited dust, the filtering device is used for purifying the sewage collected by the recovery pipe, and clean water purified by the filtering device can flow into the water storage tank.

As a preferred scheme of the anti-blocking device for the fluid director, a water outlet of the recovery pipe is communicated with a water outlet pipe, the water outlet pipe extends into a water well, a liquid level sensor is arranged in the water storage tank, a third electromagnetic valve is connected to the water outlet pipe, a fourth electromagnetic valve is connected between the recovery pipe and the filtering device, and the liquid level sensor, the third electromagnetic valve and the fourth electromagnetic valve are electrically connected.

As a preferable scheme of the anti-blocking device for the fluid director, the recovery pipe, the filtering device and the water outlet pipe are communicated through a three-way pipe.

According to another aspect of the utility model, another aim at still provide a photovoltaic system, including photovoltaic module, still include any one of the divertor anti-clogging device.

The beneficial effects of the utility model are that:

the utility model provides a divertor anti-clogging device, wherein, the rainwater collecting box is placed in outdoor being used for collecting the rainwater to transmit the rainwater to the storage water tank in, the water economy resource is alleviated water pressure. When the water-saving type water distributor is used, the water pump pumps water in the water storage tank into the water spraying pipe and sprays the water from the water spraying opening to the fluid director, and accumulated dust accumulated on the edge frame at the bottom end is washed clean, so that the problem of blockage of the fluid director in the prior art is solved, the power generation capacity of a system is improved, and the service life of the fluid director is prolonged.

The utility model provides a photovoltaic system through using above-mentioned divertor anti-clogging device, can promote entire system's generated energy, prolongs the life of divertor.

Drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly and easily, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure view of an anti-clogging device for a flow director provided by an embodiment of the present invention;

fig. 2 is a first diagram illustrating a fitting relationship between a photovoltaic module and a spray pipe according to an embodiment of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

fig. 4 is a second diagram illustrating a matching relationship between the photovoltaic module and the water spraying pipe according to an embodiment of the present invention;

fig. 5 is a partially enlarged view at B in fig. 4.

In the figure:

100. a photovoltaic module; 110. a photovoltaic panel; 120. a rectangular frame; 121. a bottom end frame; 200. a water well;

1. a fluid director;

2. a water supply assembly; 21. a rainwater collection box; 22. a water storage tank; 23. a water pump; 24. a water spray pipe; 241. a connecting pipe; 242. flushing the tube set; 2421. a first flush tube; 2422. a second flush tube; 2423. a spray head; 25. a rainfall sensor; 26. a first solenoid valve; 27. a second solenoid valve;

3. a recovery assembly; 31. a recovery pipe; 32. a filtration device;

4. a water outlet pipe; 5. a third electromagnetic valve; 6. a three-way pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment provides a photovoltaic system, which includes a photovoltaic module 100 and a deflector anti-blocking device, where the deflector anti-blocking device is used to solve the technical problem of the deflector blocking due to dust accumulation in the prior art.

In the present embodiment, as shown in fig. 2 and fig. 3, the deflector 1 is disposed on the bottom end frame 121 of the photovoltaic module 100, the photovoltaic module 100 includes a photovoltaic panel 110 and a rectangular frame 120, and the photovoltaic panel 110 is embedded in the rectangular frame 120. During the in-service use, photovoltaic module 100 generally inclines to install, and the frame that is located the bottommost among the rectangle frame 120 that the slope set up is bottom frame 121, and divertor 1 specifically sets up on bottom frame 121 for with the remaining water of bottom frame 121 and dust drainage outside photovoltaic module 100, in order to reach the purpose of clean photovoltaic module 100.

However, the flow guide capability of the flow guide 1 is limited, if the surface of the photovoltaic module 100 has too much dust, after raining, a part of the dust is accumulated from the surface of the photovoltaic panel 110 to the bottom end frame 121, so that the dust is not completely guided once, and the flow guide 1 is blocked after being accumulated for many times. Once the fluid director 1 is blocked, the dust accumulated on the bottom end frame 121 forms a shadow to shield the photovoltaic panel 110, which results in power loss of the photovoltaic panel 110 and reduction of system power generation. In the prior art, the problem of dust accumulation is solved by adding more fluid directors 1 to the bottom end frame 121, but the material cost and the installation and construction cost are increased sharply, the installation reject ratio is increased, and the flow guide effect is greatly weakened.

In order to solve the above problem, referring to fig. 1 and fig. 3, the anti-blocking device for the fluid director 1 provided in this embodiment includes a water supply assembly 2, the water supply assembly 2 includes a rainwater collection box 21, a water storage box 22, a water pump 23 and a water spray pipe 24, the rainwater collection box 21, the water storage box 22 and the water pump 23 are sequentially communicated, a water inlet of the water spray pipe 24 is communicated with a water outlet of the water pump 23, one end of the water spray pipe 24, which is far away from the water pump 23, extends in parallel to the length direction of the bottom end frame 121, and a water spray opening faces the fluid director 1, and the water spray pipe 24 can spray water toward the fluid director 1 to clean accumulated dust.

Wherein, the rainwater collecting box 21 is placed outdoors and used for collecting rainwater, and transmits the rainwater to the water storage tank 22, thereby saving water resources and relieving water pressure. When the water-saving type water-saving device is used, the water pump 23 pumps water in the water storage tank 22 into the water spraying pipe 24 and sprays the water towards the fluid director 1 from the water spraying opening to clean accumulated dust accumulated at the bottom end frame 121, so that the problem of blockage of the fluid director 1 in the prior art is solved, the power generation capacity of a system is improved, and the service life of the fluid director 1 is prolonged.

Further, as shown in fig. 1, the water supply assembly 2 further comprises a rain sensor 25, a first electromagnetic valve 26 is connected between the rain water collecting tank 21 and the water storage tank 22, a second electromagnetic valve 27 is connected to the water spraying pipe 24, and the rain sensor 25 is electrically connected to the water pump 23, the first electromagnetic valve 26 and the second electromagnetic valve 27. It should be noted that the water supply assembly 2 further includes a controller, the rainfall sensor 25 is electrically connected to the controller, the rainfall sensor 25 is placed outdoors for detecting rainfall and sending information of the detected rainfall to the controller, and the controller controls the first electromagnetic valve 26, the second electromagnetic valve 27 and the water pump 23 to be turned on or off by reading the weather forecast and the rainfall information, that is, the controller determines whether to spray water according to the rainfall duration and the rainfall parameter of the weather forecast. By adopting the arrangement, the automatic water spraying of the water spraying pipe 24 can be realized, the automation degree is high, manual operation and operation are not needed, and the labor cost is saved. The controller is a conventional one, and any controller capable of implementing the above functions may be used in the present embodiment.

Specifically, for convenience of description, the rainfall is designated as X, and the rainfall duration is designated as H. Wherein, when X is less than or equal to 0.3mm/min, or X is more than 9mm/min, H is more than or equal to 2H, the controller is standby and does not act, namely the water pump 23 does not spray water. When X is more than 0.3 and less than or equal to 1mm/min, H is less than 12 hours, or X is more than 1 and less than or equal to 2mm/min, H is less than 6 hours, or X is more than 2 and less than or equal to 3mm/min, H is less than 4 hours, or X is more than 3 and less than or equal to 5mm/min, H is less than 3 hours, or X is more than 5 and less than or equal to 9mm/min, and H is less than 2 hours, under any condition, the controller controls the first electromagnetic valve 26, the water pump 23 and the second electromagnetic valve 27 to work, the water spraying time is 20s, after 20 minutes, water is sprayed for 20s again, after 2 minutes, water is sprayed for 30s again, and the interval time is used for guiding the flow by matching with the fluid director 1 and guiding away the accumulated dust on the bottom end frame 121.

Further, as shown in fig. 3 and 4, the water spraying pipe 24 includes a connection pipe 241 and a washing pipe group 242 which are communicated, a water inlet of the connection pipe 241 is communicated with a water outlet of the water pump 23, and the washing pipe group 242 is used for spraying water toward the deflector 1. Preferably, the connecting pipe 241 has two water outlets, the flushing pipe group 242 includes a first flushing pipe 2421 and a second flushing pipe 2422, the first flushing pipe 2421 and the second flushing pipe 2422 are respectively and correspondingly communicated with the two water outlets of the connecting pipe 241, the first flushing pipe 2421 is disposed at a junction of the bottom end frame 121 and the photovoltaic module 100, the second flushing pipe 2422 is disposed on a side surface of the bottom end frame 121 and located between the fluid director 1 and the bottom end frame 121, and the first flushing pipe 2421 and the second flushing pipe 2422 are both parallel to the bottom end frame 121. The first washing pipe 2421 is used for washing accumulated dust at the junction of the bottom end frame 121 and the photovoltaic panel 110, and the second washing pipe 2422 is used for washing the accumulated dust between the flow guider 1 and the side surface of the bottom end frame 121, so that the problem of blockage of the flow guider 1 is solved, the power generation amount of a system is improved, and the service life of the flow guider 1 is prolonged.

Preferably, the water spraying pipe 24 comprises two water spraying nozzles, and the two water spraying nozzles are arranged in opposite directions and are used for spraying water to the flow deflectors 1 on two adjacent photovoltaic modules 100. As shown in fig. 3, in particular, the first washing pipe 2421 comprises two water spraying ends, and the two water spraying ends extend in opposite directions and are used for spraying water to the openings of the fluid deflectors 1 of two adjacent photovoltaic modules 100; the second washing pipe 2422 includes two water spraying ends extending in opposite directions for spraying water to the sides of the deflector 1 of two adjacent photovoltaic modules 100. By adopting the arrangement, the dust deposition cleaning work of the fluid director 1 on two adjacent photovoltaic modules 100 can be completed at one time, and the material and labor installation cost is saved. It should be noted that, as shown in fig. 4, the sprinkler pipes 24 installed at the corners of the photovoltaic module 100 at the edge only need to have one sprinkler end.

Preferably, as shown in fig. 3, a spray head 2423 is connected to the water spraying opening of the second washing pipe 2422 because the range of water spraying required by the second water spraying pipe 24 is large. It is further preferable that the cross-sectional shape of the head 2423 is a trapezoid, and the end with a larger area is a water spraying end to enlarge the water spraying range. Since the first washing pipe 2421 sprays water along the boundary edge of the bottom end frame 121 and the photovoltaic panel 110, a large spraying range is not required, and therefore the first washing pipe 2421 does not need to be provided with the spray head 2423.

Further, as shown in fig. 1, the anti-clogging device for a fluid director 1 provided in this embodiment further includes a recycling assembly 3, the recycling assembly 3 includes a recycling pipe 31 and a filtering device 32, the recycling pipe 31 is communicated with the filtering device 32, the filtering device 32 is communicated with the water storage tank 22, the recycling pipe 31 is used for collecting the sewage after the fluid director 1 is washed, the filtering device 32 is used for purifying the sewage collected by the recycling pipe 31 to obtain clean water and sludge, the clean water after purification can flow into the water storage tank 22 to wash deposited dust, so as to achieve the purpose of recycling and fully save water resources. Wherein, filter equipment 32 is provided with the filter screen for filter sewage, in order to get rid of the impurity of aquatic, filter equipment 32 can adopt any kind of structure that can realize above-mentioned filtering capability.

Preferably, with reference to fig. 1, a water outlet of the recycling pipe 31 is communicated with a water outlet pipe 4, the water outlet pipe 4 extends into the water well 200, a liquid level sensor is arranged in the water storage tank 22, the water outlet pipe 4 is connected with a third electromagnetic valve 5, a fourth electromagnetic valve (not shown in the figure) is connected between the recycling pipe 31 and the filtering device 32, and the liquid level sensor is electrically connected with the third electromagnetic valve 5 and the fourth electromagnetic valve. It should be noted that the liquid level sensor is electrically connected to the controller, and is configured to detect a liquid level in the water storage tank 22, and send detected liquid level information to the controller, and the controller controls the third electromagnetic valve 5 and the fourth electromagnetic valve to open or close. When the liquid level in the water storage tank 22 is lower than the preset liquid level, the controller controls the third electromagnetic valve 5 to be closed and controls the fourth electromagnetic valve to be opened so that the sewage flows back to the filtering device 32, and the filtered clean water flows into the water storage tank 22 again; when the liquid level in the storage tank 22 is equal to or higher than the preset liquid level, the controller controls the third electromagnetic valve 5 to be opened and controls the fourth valve to be closed, so that the sewage directly flows into the well 200. In this way, the water in the water storage tank 22 can be always in a proper volume range, and the waste of water caused by overflow of the water in the water storage tank 22 is avoided.

Further preferably, with continued reference to fig. 1, the recovery pipe 31, the filtering device 32 and the water outlet pipe 4 are communicated through the three-way pipe 6, so that the materials are conveniently obtained, the manual operation is simple, and the pipeline can be simplified.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A deflector anti-clogging device, comprising:

the flow guider (1) is arranged on a bottom end frame (121) of the photovoltaic assembly (100);

water supply assembly (2), including rainwater collecting box (21), storage water tank (22), water pump (23) and spray pipe (24), rainwater collecting box (21) storage water tank (22) with water pump (23) communicate in proper order, the water inlet of spray pipe (24) with the delivery port intercommunication of water pump (23), the one end of spray pipe (24) is kept away from water pump (23) is on a parallel with the length direction extension of bottom frame (121) and water jet orientation divertor (1), spray pipe (24) can face divertor (1) water spray to clear up the deposition.

2. The deflector anti-clogging device according to claim 1, characterized in that the water supply assembly (2) further comprises a rain sensor (25), a first solenoid valve (26) is connected between the rain water collecting tank (21) and the water storage tank (22), a second solenoid valve (27) is connected to the water spraying pipe (24), and the rain sensor (25) is electrically connected to the water pump (23), the first solenoid valve (26) and the second solenoid valve (27).

3. The deflector anti-clogging device according to claim 1, characterized in that said water spraying pipe (24) comprises a connecting pipe (241) and a flushing pipe group (242) in communication, the water inlet of said connecting pipe (241) being in communication with the water outlet of said water pump (23), said flushing pipe group (242) being adapted to spray water towards said deflector (1).

4. Deflector anti-clogging device according to claim 3, characterized in that said connecting tube (241) has two water outlets;

the flushing pipe group (242) comprises a first flushing pipe (2421) and a second flushing pipe (2422), the first flushing pipe (2421) and the second flushing pipe (2422) are respectively and correspondingly communicated with two water outlets of the connecting pipe (241), the first flushing pipe (2421) is arranged at the junction of the bottom end frame (121) and the photovoltaic panel (110), and the second flushing pipe (2422) is arranged on the side surface of the bottom end frame (121) and is located between the flow director (1) and the bottom end frame (121).

5. The deflector anti-clogging device according to claim 4, characterized in that a spray head (2423) is connected at the water jet of the second flushing pipe (2422).

6. Deflector anti-clogging device according to claim 1, characterized in that said water jet pipe (24) comprises two of said water jets, arranged in opposite directions, for spraying water to said deflector (1) on two adjacent photovoltaic modules (100).

7. The deflector anti-clogging device according to claim 1, characterized in that it further comprises a recovery assembly (3), said recovery assembly (3) comprising a recovery pipe (31) and a filtering device (32), said recovery pipe (31) being in communication with said filtering device (32), said filtering device (32) being in communication with said storage tank (22), said recovery pipe (31) being adapted to collect the sewage from washing the deposited ash, said filtering device (32) being adapted to purify the sewage collected by the recovery pipe (31), the clean water purified by said filtering device (32) being able to flow into said storage tank (22).

8. The deflector anti-clogging device according to claim 7, characterized in that the water outlet of said recovery pipe (31) is connected with a water outlet pipe (4), said water outlet pipe (4) extends into a water well (200), a liquid level sensor is disposed in said water storage tank (22), a third electromagnetic valve (5) is connected to said water outlet pipe (4), a fourth electromagnetic valve is connected between said recovery pipe (31) and said filtering device (32), and said liquid level sensor, said third electromagnetic valve (5) and said fourth electromagnetic valve are electrically connected.

9. Deflector anti-clogging device according to claim 8, characterized in that said recovery pipe (31), said filtering means (32) and said outlet pipe (4) are in communication through a tee (6).

10. A photovoltaic system comprising a photovoltaic module (100), characterized in that it further comprises a deflector anti-clogging device according to any one of claims 1 to 9.